
A complete and beginner-friendly guide to install **Certbot Let’s Encrypt SSL** on **Ubuntu servers with NGINX**, enabling free **HTTPS encryption** with **automatic certificate renewal**.

---

## 📦 Installing Certbot on Ubuntu 16.04

For users running Ubuntu 16.04, execute the following commands:

```bash
apt-get update
sudo apt-get install certbot
sudo apt-get install python-certbot-nginx
```

---

## 📦 Installing Certbot on Ubuntu 18.04 and Later

For Ubuntu 18.04 or any newer version, run the following:

```bash
apt-get update
sudo apt-get install certbot
sudo apt-get install python3-certbot-nginx
```

---

## 🌐 Obtain a Let’s Encrypt SSL Certificate for NGINX

Once Certbot is installed, use this command to **automatically configure HTTPS for your domain**:

```bash
sudo certbot --nginx -d example.com
```

Replace `example.com` with your actual domain name.

---

## 🔁 Automatically Renew Let’s Encrypt SSL Certificates

To ensure your SSL certificates are **renewed automatically**, add a cron job as follows:

### Edit Crontab

```bash
crontab -e
```

### Add the Following Line

```bash
0 12 * * * /usr/bin/certbot renew --quiet
```

This command runs the renewal process **daily at 12:00 PM**.

---

## ✅ Conclusion

Your website is now secured with **free HTTPS using Let’s Encrypt**, and the SSL certificate will automatically renew without manual intervention.


<p>A complete and beginner-friendly guide to install <strong>Certbot Let’s Encrypt SSL</strong> on <strong>Ubuntu servers with NGINX</strong>, enabling free <strong>HTTPS encryption</strong> with <strong>automatic certificate renewal</strong>.</p>
<hr>
<h2>📦 Installing Certbot on Ubuntu 16.04</h2>
<p>For users running Ubuntu 16.04, execute the following commands:</p>
<pre><code class="language-bash">apt-get update
sudo apt-get install certbot
sudo apt-get install python-certbot-nginx
</code></pre>
<hr>
<h2>📦 Installing Certbot on Ubuntu 18.04 and Later</h2>
<p>For Ubuntu 18.04 or any newer version, run the following:</p>
<pre><code class="language-bash">apt-get update
sudo apt-get install certbot
sudo apt-get install python3-certbot-nginx
</code></pre>
<hr>
<h2>🌐 Obtain a Let’s Encrypt SSL Certificate for NGINX</h2>
<p>Once Certbot is installed, use this command to <strong>automatically configure HTTPS for your domain</strong>:</p>
<pre><code class="language-bash">sudo certbot --nginx -d example.com
</code></pre>
<p>Replace <code>example.com</code> with your actual domain name.</p>
<hr>
<h2>🔁 Automatically Renew Let’s Encrypt SSL Certificates</h2>
<p>To ensure your SSL certificates are <strong>renewed automatically</strong>, add a cron job as follows:</p>
<h3>Edit Crontab</h3>
<pre><code class="language-bash">crontab -e
</code></pre>
<h3>Add the Following Line</h3>
<pre><code class="language-bash">0 12 * * * /usr/bin/certbot renew --quiet
</code></pre>
<p>This command runs the renewal process <strong>daily at 12:00 PM</strong>.</p>
<hr>
<h2>✅ Conclusion</h2>
<p>Your website is now secured with <strong>free HTTPS using Let’s Encrypt</strong>, and the SSL certificate will automatically renew without manual intervention.</p>


How to Install Certbot Let’s Encrypt SSL on Ubuntu with NGINX

📦 Installing Certbot on Ubuntu 16.04

📦 Installing Certbot on Ubuntu 18.04 and Later

🌐 Obtain a Let’s Encrypt SSL Certificate for NGINX

🔁 Automatically Renew Let’s Encrypt SSL Certificates

Edit Crontab

Add the Following Line

✅ Conclusion